配制中性福尔马林溶液最好用() A.醋酸缓冲液 B.枸橼酸缓冲液 C.磷酸缓冲液pH

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问题:

配制中性福尔马林溶液最好用()

A.醋酸缓冲液

B.枸橼酸缓冲液

C.磷酸缓冲液pH7.2

D.自来水

E.蒸馏

考点:安徽住院医师临床病理科特殊染色及免疫组化室特殊染色及免疫组化室题库
题型:单项选择题

已知等腰三角形的一边为3,另两边是方程x2-4x+m=0的两个实根,则m的值为______.

题型:单项选择题
Do fight against painting pollution
Do you know what kind of things the young people are reading? More and more 21_  and teachers have noticed another kind of pollution, which comes from the printed papers 22   on streets.
These printed things  23 newspapers but have hardly anything to do with _24_. You can only find reading materials badly made up there—some are too strange for anyone to   25  ; others are frightening stories of something _26_. However, many of the young readers are getting interested in such 27  reading, which 28  them what they should pay for their breakfast and brings them nightmares and immoral ideas in  29 . Homework is left 30  and daily games lost.
These sellers stand about on streets selling their papers well. The writers, publishers and printers,  31  they are, we never know, are  32  their silent money.
The sheep-skinned wolf’s story seems to have been forgotten once again. Why not 33  this kind of thing? Yes, both teachers and parents have asked each other for more strict control of the young readers. 34  , the more you want to forbid it, the more they want to have a look at it.  35  you may even find several children, driven by their curious natures,  36  one patched paper, which has traveled from hand to hand.
It really does 37 to our society. It has already formed a sort of moral pollution. The  38   teachers and parents need more powerful support in their protection of the young generation. At the same time, the young   39    need more interesting books to help them  40  those ugly paper.
小题1:
A.writers B.readersC.students D.parents
小题2:
A.sold B.printedC.cameD.found
小题3:
A.work outB.look likeC.act outD.depend on
小题4:
A.themB.childrenC.young peopleD.it
小题5:
A.thinkB.believeC.knowD.understand
小题6:
A.still worseB.even better C.very goodD.more important
小题7:
A.wonderfulB.interestingC.usefulD.poisonous
小题8:
A.spendsB.costsC.paysD.takes
小题9:
A.sightB.commonC.returnD.use
小题10:
A.unknown B.muchC.lessD.undone
小题11:
A.whatB.whoeverC.whateverD.who
小题12:
A.makingB.spendingC.wastingD.using
小题13:
A.forbidB.separateC.leaveD.stop
小题14:
A.LuckilyB.Unfortunately C.BadlyD.Happily
小题15:
A.AlwaysB.HardlyC.Sometimes D.Seldom
小题16:
A.sharingB.gettingC.holdingD.taking
小题17:
A.goodB.favorC.wrongD.harm
小题18:
A.puzzled B.surprisedC.disappointedD.worried
小题19:
A.teachersB.parentsC.readersD.writers
小题20:
A.come intoB.break downC.get rid ofD.get of
题型:单项选择题

酚妥拉明()。

A.α受体兴奋剂

B.α受体阻滞剂

C.β受体兴奋剂

D.β受体阻滞剂

E.胆碱能神经阻滞剂

题型:单项选择题

衡量国债规模适度与否的指标有( )。

A.偿债率

B.债务依存度

C.发行率

D.债务负担率

E.清偿率

题型:单项选择题

关于大肠癌的叙述,错误的是

A.好发部位以直肠最多见

B.肉眼大体以溃疡型最多见

C.左侧大肠癌以浸润型多见

D.直肠肛门附近以腺癌多见

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